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PEDIATRIC DENTISTRY > L.2 Development of the Dentition > Flashcards

L.2 Development of the Dentition Flashcards

1
Q

When do the PRIMARY TEETH begin to develop?

A

6-8 weeks in utero

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2
Q

When do the PRIMARY TEETh begin to calcify?

A

14-19 weeks in utero

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3
Q

What are the first PRIMARY teeth to erupt? Which teeth?

A

6 months…mand centrals

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4
Q

Which Primary teeth typically come in the arch first, mandibular or maxillary?

A

mandibular, usually 2 months earlier than its maxillary counterpart

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5
Q

What are the LAST PRIMARY teeth into the dentition? When?

A

Maxillary 2nd molars…24 months

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6
Q

What are the three main stages of tooth development in order please? What are the OFFICIAL NAMES of these stages?

A

Bud (initiation), Cap(proliferation), Bell (differentiation)

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7
Q

What is the most common PRIMARY tooth to never develop?

A

Primary Maxillary Lateral Incisior

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8
Q

What is HANDS DOWN, the most common PERMANENT tooth to not develop?

A

3rd molar

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9
Q

Besides the MOST OBVIOUS Permanent tooth to be missing (3rd molar), what are the next three most common in order?

A

1.Mand 2nd PM 2.Max Lat Incisior 3.Max 2nd PM (most distal tooth in each set!)

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10
Q

Who is most effected by supernumerary teeth? male or female?

A

male 2:1

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11
Q

Are supernumeraries more common in the form of permanent teeth or primary teeth?

A

permanent (5:1)

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12
Q

Which arch has 90% of supernumerary tooth development?

A

maxilla

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13
Q

What percent of primary supernumerary teeth have a permanent successor?

A

33%

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14
Q

What two stages do gemination and fusion occur?

A

initiation (bud) and proliferation (cap)

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15
Q

When does concrescence occur?

A

after formation

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16
Q

What is more common fusion or gemination?

A

FUSION (94% of the time!)

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17
Q

Which teeth arise from Dental Lamina?

A

all non-succedaneous (so all primary teeth and permanent molars)

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18
Q

What are the 3 teeth most likely to me microdontic?

A

1.Maxillary Lateral Incisiors 2.2nd PMs 3.3rd molars

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19
Q

Some of the signs for Dentinogenesis Imperfecta: _______ is undermineralized

A

dentin

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20
Q

Some of the signs for Dentinogenesis Imperfecta: _______ color

A

opalescent

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21
Q

Some of the signs for Dentinogenesis Imperfecta: the pulp is ________ or small

A

obliterated

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22
Q

What is unique about type I dentinogenesis imperfecta?

A

it is also considered osteogenesis/brittle bones

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23
Q

What are 2 unique things about type II dentinogenesis imperfecta?

A

its TEETH ONLY and its more common

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24
Q

What is the unique thing about type III Dentinogenesis imperfecta?

A

its only found in Brandywine

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25
What are these describing?: Enamel thin and wears easily Dentin and pulp normal Yellow discoloration
Amelogenesis imperfecta
26
What is the characteristic of type I Amelogenesis Imperfecta?
HypoPlastic
27
What is the characteristic of type II Amelogenesis Imperfecta?
HypoMaturation
28
What is the characteristic of type III Amelogenesis Imperfecta?
HypoCalcified
29
Which dental abnormality is associated with Nails, Hair, Teeth, Sweat glands?
Ectodermal Dysplasia
30
Which dental abnormality is associated with defective ameloblast maturation?
Enamel Hypocalcification
31
Which dental abnormality is associated with defective enamel matrix formation VitD, Illness in infancy/prematurity?
Enamel Hypoplasia
32
Apposition: Decreased number =
hypoplasia
33
Apposition: poor quality =
hypocalcified
34
Apposition: increased size =
hypertrophy
35
Which of the following is a hereditary dental defect in which the enamel of the teeth is soft and under-calcified in context, yet normal in quantity? hypoplasia, hypocalcification, Fluorosis
hypo calcification
36
Now don't get confused. You've got primary eruption DOWN. but now heres the catch. whats the sequence of calcification of primary teeth?
A-D-B-C-E....what was eruption again? (a-b-d-c-e)
37
If you were to see an infancy ring on a primary tooth when did an event most likely happen and where on a 2nd molar might it be found?
it probably happened at 10 months and it would be at the CEJ.
38
If you were to see a neonatal ring on a primary tooth when did it most likely happen and where on a max 2nd molar would you find it?
most likely at birth and it will be toward the occlusal surface
39
******What is the sequence of ERUPTION for primary teeth?
A-B-D-C-E
40
I love dat shit- What is the trick to learning the age of when the primary teeth erupt?
7 + 4....7 months = 0 teeth, 11 mo = 4 teeth, 15 mo = 8 teeth etc...
41
Formation and Eruption of Primary teeth: when do Primary teeth begin to form?
6 weeks in utero
42
Formation and Eruption of Primary teeth: when does Calcification begin?
14-19 weeks IN UTERO
43
Formation and Eruption of Primary teeth: WHEN is enamel of all primary teeth usually complete?
1st year of life
44
Formation and Eruption of Primary teeth: when have all the primary teeth usually erupted?
by the 2nd year of life
45
Formation and Eruption of Primary teeth: When are the roots of all primary teeth usually complete?
3rd year of life
46
General Characteristics of Primary vs Permanent teeth: Crown- _______ than in permanent, Constricted _______ table AND ______ area
SHORTER....occlusal...cerivcal
47
General Characteristics of Primary vs Permanent teeth: Crown: the enamel and dentin are ______ in primary teeth
THINNER
48
General Characteristics of Primary vs Permanent teeth: Crown: what two words describe pedo teeth contacts?
broad and flat
49
General Characteristics of Primary vs Permanent teeth: Crown-what is their typical shade?
lighter and more opaque
50
General Characteristics of Primary vs Permanent teeth: Which dimension of the primary tooth has the largest pulp horn? (fascinating!)
MB portion of the tooth is largest pulp horn
51
Which portion of the Pedo pulp has more tortuous/irregular/accessory canals
radicular pulp
52
What are the three types of INCLUSION CYSTS possible in the newborn? What is a key feature of treating them?
Epstein's Pearls, Bohn's Nodules, and Dental Lamina Cysts...THEY ARE BENIGN and Will go away w/o Tx!!
53
What are remnants of epithelial tissue trapped along mid palatal raphe?
Epstein's Pearls
54
What are Buccal & Lingual aspects of dental ridges/Junction hard, soft palate Remnants of mucous gland tissue?
Bohn's Nodules
55
What is the result of remnants of dental lamina on the crest of alveolar ridge?
Dental-Lamina Cyst
56
What are teeth called if they are present at birth?
Natal Teeth
57
What are teeth that erupt within 30 days of birth?
Neonatal teeth
58
What is the sore called on the bottom of the tongue caused by neonatal teeth?
Riga Fede
59
What are these describing? Supernumerary teeth, defective, mobile, Incidence 1 in 4000, Risk for aspiration, removal is generally recommended
Pre-Deciduous teeth
60
What is this describing? Normal primary teeth, Incidence 1 in 2000, Should not be extracted (if possible) Radiograph helpful
primary teeth erupted prematurely
61
What is a Bluish, opaque swelling, that is Asymptomatic, is Overlying an erupting tooth, is an Accumulation of fluid in the follicular sac and is Self-limiting on gingival emergence?
an Eruption Hematoma!
62
Is an eruption hematoma associated with infection or hematoma?
NO! Mis-nomer! its not actually a hematoma!

PEDIATRIC DENTISTRY (11 decks)

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